TMPGEnc making files too big???

[Red96TA]

I just converted two .avi files to MPG2 for use in a dvd. Both files were the same...about 180mb...neither had ac3 (ran both through GSpot to make sure they wer similar). One file came out to 440mb (normal) and the other was 867mb.

I tried running the same file through again, but got the same results....what's going on?

[ZippyP.]

File size of your mpegs is determined by the length of the clip in minutes and the bitrate used. What is the length of your clips and what bitrate setting did you use when encoding?

BTW, avi file size and mpeg file size are not directly related. It's only the minutes that matter.

[Red96TA]

Both videos are exacty:
24minutes, AVI format, 187mb

They were encoded to:
MPEG2, CQ65, complaint audio (neither had AC3).

One video encoded to 440mb and the other was 997mb...I even ran them through again and got the same result. Checked both files and they were exactly the same.

What am I missing here...

[yf2001usa]

did you select the source length in tmpgenc? Cause sometimes when you don't cause you want the whole movie tmpgenc makes it twice as big.

Yf

[Red96TA]

good idea! I hadn't thought of setting the 'source range'...I'll let you know how it worked out.

[Yirkin]

Most likely one of the avi files uses VBR (variable bit rate) audio. TMPGEnc has big problems with that and bloats the file size up to be gigantic. Open the avi file in VirtualDub and it should notify you right away that the file has a problem with VBR audio.

Use VirtualDub to resave the file using direct stream copy for the video and full processing for the audio. It should generate a new avi file that will encode properly in TMPGEnc. If VirtualDub doesn't report that the origional avi's audio was encoded in VBR then you have some other problem.

Howard

[Hardcoreruss]

Extract the audio in VD and then re-encode using the file you created as the audio source.

[Red96TA]

I extracted the audio in VDub and remuxed in TMPGEnc and still have the same problem...

[Morgo]

I used to have a problem like this, It would make my files over 800mb, instead of something like 246mb, but it seemed that the file wasn't 'ended' (for lack of a better word) properly, and it gave TMPEnc the empression that it was much longer than it actually was, so I just threw the files through Virtual Dub again, and cut a little bit off the end credits, so that it would make a proper "end". From there, the files seemed to work properly. I dont know if this will help you, but you could try it...